Another paperclay success. I wanted a hollow fish so I made a fish-shaped form out of 1 inch Styrofoam. Rolled out some paperclay about 3/8 inch thick and covered the foam, I punched a small vent hole through the clay into the foam underneath between the fins. I just left it out to dry, no wrapping. Because paperclay does not shrink near as much as regular clay when it dries, it did not crack. My kiln is outside and I left after I turned it on, but I expect it smoked and stunk like crazy when that Styrofoam burned out